Baked Cinnamon Sugar Donuts

1 Preheat oven to 350°F (177°C). Spray a donut pan with non-stick spray. Set aside.
2 Make the donuts: Whisk the flour, baking powder, baking soda, salt, cinnamon, in a medium bowl. Set aside. Whisk the egg, sugar, cashew butter, and milk  together until smooth. Add the vanilla, whisking until fully combined. Pour the wet ingredients into the dry ingredients and mix until just combined. Do not overmix. 
3 Spoon the batter into the donut holes
4 Bake for 9–10 minutes or until the edges are lightly browned. Allow to cool and transfer to a wire rack
5 Top the donuts: Combine the sugar and cinnamon in a medium bowl. Dip the donuts in melted coconut oil, then dunk into the cinnamon sugar mixture coating all sides. Donuts are best served immediately. Leftovers keep well covered tightly at room temperature for up to 2 days.